Finding the Fourth Proportional to 9,061.36, 13,589.20 and 4,378.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,061.36 : 13,589.20 = 4,378.46 : x
2. Step 2: Convert to fraction form
   9,061.36/13,589.20 = 4,378.46/x
3. Step 3: Cross multiply
   9,061.36x = 13,589.20 × 4,378.46
4. Step 4: Simplify right side
   9,061.36x = 59,499,768.63
5. Step 5: Solve for x
   x = 59,499,768.63/9,061.36
6. Step 6: Final answer
   x = 6,566.32